CME Impact Sparks Auroras over US States

Source - Space Weather News for March 17, 2013: http://spaceweather.com

GEOMAGNETIC STORM: Skies over North America turned green for St. Patrick's Day.  A CME impact during the early hours of March 17th sparked auroras in the United States at least as far south as Colorado.  More auroras are possible tonight, mainly over the Arctic, as Earth's magnetic field continues to reverberate from the impact.  Check http://spaceweather.com for photos and updates.